CN116080222A - 一种仿实木地板彩膜 - Google Patents

一种仿实木地板彩膜 Download PDF

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CN116080222A
CN116080222A CN202211737874.6A CN202211737874A CN116080222A CN 116080222 A CN116080222 A CN 116080222A CN 202211737874 A CN202211737874 A CN 202211737874A CN 116080222 A CN116080222 A CN 116080222A
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color film
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朱圣明
骆清友
汪广辉
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Jiangsu Jiajiajiajia New Material Group Co ltd
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Abstract

本发明涉及PVC地板技术领域,具体涉及一种仿实木地板彩膜。传统工艺生产的PVC地板为多层结构,各层之间常采用地板胶粘合,生产成本高,且易产生对环境有害的VOC气体。针对上述问题,本发明提供一种仿实木地板彩膜,包括表层、彩膜层和底层,所述表层与彩膜层、底层通过热压复合,其表层和底层配方中还添加有自制增塑剂,所述自制增塑剂分子结构含有巯基结构,自制增塑剂可通过巯基以化学键的方式链接到PVC树脂结构中,不仅可以提高PVC地板的力学性能,还可避免加工及使用过程中增塑剂的迁移析出问题。

Description

一种仿实木地板彩膜
技术领域
本发明涉及PVC地板技术领域,具体涉及一种仿实木地板彩膜。
背景技术
PVC地板是目前非常流行的新式地板,主要以PVC为原料,与增塑剂、稳定剂、着色剂等助剂一起通过压延工艺制备而成。所述PVC地板超薄质轻、耐磨性好、安装方便等优点。
PVC地板通常具有多层结构,对于传统工艺,各层之间常采用地板胶粘合,生产成本高,且易产生对环境有害的VOC气体。除此之外,由于地板胶与各层之间的膨胀率和收缩率较大,地板容易开裂,失去应用价值。
PVC具有不易燃性、高强度、耐侯性以及优良的几何稳定性,但是PVC材质较脆,PVC地板制备过程中需要加入增塑剂以改善其机械性能。常用的增塑剂为邻苯二甲酸二辛酯、邻苯二甲酸二异辛酯、己二酸二辛酯、癸二酸二辛酯等,以上增塑剂均为小分子增塑剂,具有表面迁移性,严重影响PVC地板的力学性能。
发明内容
现有技术中存在的问题是:传统工艺生产的PVC地板为多层结构,各层之间常采用地板胶粘合,生产成本高,且易产生对环境有害的VOC气体。针对上述问题,本发明提供一种仿实木地板彩膜,包括表层、彩膜层和底层,所述表层与彩膜层、底层通过热压复合,所述表层,以重量份数计,包括以下成分:
Figure BDA0004031906100000011
所述底层,以重量份数计,包括以下成分:
Figure BDA0004031906100000012
碳酸钙300-350份。
具体地,所述增塑剂为自制的增塑剂,制备方法包括以下步骤:
(1)将1mol腰果酚、1-1.2mol油酸、对甲苯磺酸、甲基氢醌加入到200mL二甲苯中,加热至150-180℃,强力搅拌2-3h,使得腰果酚与油酸发生酯化反应,反应结束后,静置,冷却至室温后,将溶液进行真空浓缩,残留组分得到富集;缓缓加入500mL质量浓度为2wt.%的碳酸氢钠水溶液,洗涤3次,再用去离子水洗涤至中性,分液,取有机相,用无水硫酸钠干燥6h,过滤,滤液60℃真空干燥4h,得到中间产物I;
所述对甲苯磺酸用量为反应物总质量的1%;
所述甲基氢醌用量为反应物总质量的0.5%;
(2)将600g中间产物I、4mol冰醋酸、400mL甲苯加入三口烧瓶中,磁力搅拌,升温至60-65℃开始滴加过2-4mol氧化氢,反应3-6h,冷却至室温,用去离子水洗涤至中性,分液,取有机相,减压蒸馏,60℃真空干燥4h,得到中间产物II;
(3)将650g中间产物II、100g巯基丙酸、四丁基溴化铵置于三口烧瓶中,100-130℃下搅拌1-3h,降至室温,加入400mL二氯甲烷萃取,用500mL质量浓度为2wt.%的碳酸氢钠水溶液洗涤3次,再用去离子水洗涤至呈中性,分液,取有机相,用无水硫酸钠干燥6h,过滤,取滤液,减压蒸馏,在60℃真空干燥4h,得到目标产物III;
所述四丁基溴化铵用量为反应物总质量的1.5%。
具体地,所述植物油包括棕榈油、亚麻籽油、蓖麻油、棉籽油、橡胶籽油、菜籽油和大豆油中的至少一种。
具体地,所述热稳定剂包括钙锌复合稳定剂、有机锡类稳定剂中的至少一种。
具体地,所述表层的制备方法包括以下步骤:
S1:按照配方量,将表层原料混合搅拌均匀,得到原料混合物;
S2:将原料混合物先密炼3-5min,再开炼3-5min,使得各原料充分混合均匀,密炼温度为165-170℃,开炼温度为120-125℃,得到预混料;
S3:压延成型,将预混料投入压延线的料斗中,经过螺杆熔融塑化后挤出压延成片状表层。
具体地,所述底层的制备方法包括以下步骤:
S1:按照配方量,将表层原料混合搅拌均匀,得到原料混合物;
S2:将原料混合物先密炼3-5min,再开炼3-5min,密炼温度为165-170℃,开炼温度为120-125℃,使得各原料充分混合均匀,得到预混料;
S3:压延成型,将预混料投入压延线的料斗中,经过螺杆熔融塑化后挤出压延成片状底层,熔融物料由螺杆挤出后压延成片状,经过裁剪。
具体地,所述仿实木地板彩膜,其制备方法包括以下步骤:
(1)将表层、彩膜层、底层由上到下依次铺好;
(2)将步骤(1)铺好的各层置于层压机上进行热压贴合,热压压力为10-12kgf/cm2、时间为35-40min,温度为120-125℃。
有益效果
(1)本发明将自制增塑剂添加到PVC地板的表层和底层材料体系中,所述自制增塑剂分子结构中含有苯环、酯基、脂肪链等结构,且苯环与酯基直接相连,其结构与邻苯二甲酸酯相似,具有优异的增塑性;所述酯基可吸附PVC热解过程中产生的HCl;所述长脂肪链具有非常优异的增塑作用,可显著降低PVC的加工温度;
(2)所述自制增塑剂分子结构中还含有环氧基、羟基结构,环氧基具有弱极性,可解除PVC分子链间的强极性作用力,同样具有增塑效果;环氧基也可捕捉PVC分解产生的HCl,具有优异的辅助稳定性的效果;
(3)所述自制增塑剂分子结构中还含有巯基结构,巯基可与PVC降解过程中形成的双键发生巯基-烯点击反应,具有阻止PVC地板变色劣化的效果;自制增塑剂可通过巯基以化学键的方式链接到PVC树脂结构中,不仅可以提高PVC地板的力学性能,还可避免加工及使用过程中增塑剂的迁移析出问题。
具体实施方式
本发明以下实施例中的增塑剂为自制增塑剂,制备方法如下:
(1)将1mol腰果酚、1-1.2mol油酸、对甲苯磺酸、甲基氢醌加入到200mL二甲苯中,加热至160℃,强力搅拌2h,使得腰果酚与油酸发生酯化反应,反应结束后,静置,冷却至室温后,将溶液进行真空浓缩,残留组分得到富集;缓缓加入500mL质量浓度为2wt.%的碳酸氢钠水溶液,洗涤3次,再用去离子水洗涤至中性,分液,取有机相,用无水硫酸钠干燥6h,过滤,滤液60℃真空干燥4h,得到中间产物I所述对甲苯磺酸用量为反应物总质量的1%,所述甲基氢醌用量为反应物总质量的0.5%;
所述中间产物I的红外数据如下:
3351cm-1:-OH消失;1773cm-1:-C=O存在;3010cm-1:苯环-C-H、1589cm-1:苯环-C=C-存在;1639cm-1、817cm-1:-C=C-存在;
所述中间产物I的结构式如下:
Figure BDA0004031906100000041
R为十五烷基碳链;
(2)将600g中间产物I、4mol冰醋酸、400mL甲苯加入三口烧瓶中,磁力搅拌,升温至60℃开始滴加3mol过氧化氢,反应3h,冷却至室温,用去离子水洗涤至中性,分液,取有机相,减压蒸馏,60℃真空干燥4h,得到中间产物II;
所述中间产物II的红外数据如下:
1773cm-1:-C=O存在;3010cm-1:苯环-C-H、1589cm-1:苯环-C=C-存在;1639cm-1、817cm-1:-C=C-消失;943cm-1、824cm-1:环氧基存在;
所述中间产物II的结构式如下:
Figure BDA0004031906100000042
R为十五烷基碳链;
(3)将650g中间产物II、100g巯基丙酸、四丁基溴化铵置于三口烧瓶中,所述四丁基溴化铵用量为反应物总质量的1.5%,120℃下搅拌2h,降至室温,加入400mL二氯甲烷萃取,用500mL质量浓度为2wt%的碳酸氢钠水溶液洗涤3次,再用去离子水洗涤至呈中性,分液,取有机相,用无水硫酸钠干燥6h,过滤,取滤液,减压蒸馏,在60℃真空干燥4h,得到自制增塑剂;
所述自制增塑剂的红外数据如下:
3383cm-1:-OH存在;1773cm-1:-C=O存在并增强;3010cm-1:苯环-C-H、1589cm-1:苯环-C=C-存在;943cm-1、824cm-1:环氧基存在并减弱;2551cm-1:-SH存在。
所述自制增塑剂的结构式如下:
Figure BDA0004031906100000051
R为十五烷基碳链。
本发明以下实施例所用彩膜层为木纹仿真水转印膜,购自江门市新会区大泽化工有限公司,厚度0.5mm。
本发明以下实施例所用ACR加工助剂为ACR树脂ZB-401,购自宁波金驰塑料有限公司。
本发明以下实施例所用碳酸钙为800目重质碳酸钙粉末。
本发明以下实施例所用钙锌复合稳定剂购自广东炜林纳新材料科技股份有限公司。
PVC树脂为PVC树脂粉,牌号SG8,购自青岛佳百特新材料科技有限公司。
本发明以下实施例所用表层,按照以下步骤制备:
S1:按照配方量,将表层原料混合搅拌均匀,得到原料混合物;
S2:将原料混合物先密炼3min,再开炼3min,使得各原料充分混合均匀,密炼温度为165℃,开炼温度为120℃,得到预混料;
S3:压延成型,将预混料投入压延线的料斗中,经过螺杆熔融塑化后挤出压延成厚度为1mm的片状表层,螺杆熔融塑化过程中,螺杆温度各段温度为160℃、175℃、180℃、175℃、160℃、150℃。
本发明以下实施例所用底层,按照以下步骤制备:
S1:按照配方量,将表层原料混合搅拌均匀,得到原料混合物;
S2:将原料混合物先密炼5min,再开炼5min,密炼温度为170℃,开炼温度为125℃,使得各原料充分混合均匀,得到预混料;
S3:压延成型,将预混料投入压延线的料斗中,经过螺杆熔融塑化后挤出压延成厚度为1.5mm的片状底层,螺杆熔融塑化过程中,螺杆温度各段温度为160℃、175℃、180℃、175℃、160℃、150℃。
实施例1
一种仿实木地板彩膜,包括表层、彩膜层和底层,所述表层与彩膜层、底层通过热压复合,所述表层,以重量份数计,组成如下:
Figure BDA0004031906100000061
所述底层,以重量份数计,组成如下:
Figure BDA0004031906100000062
实施例2
一种仿实木地板彩膜,包括表层、彩膜层和底层,所述表层与彩膜层、底层通过热压复合,所述表层,以重量份数计,组成如下:
Figure BDA0004031906100000063
所述底层,以重量份数计,组成如下:
Figure BDA0004031906100000064
实施例3
一种仿实木地板彩膜,包括表层、彩膜层和底层,所述表层与彩膜层、底层通过热压复合,所述表层,以重量份数计,组成如下:
Figure BDA0004031906100000071
所述底层,以重量份数计,组成如下:
Figure BDA0004031906100000072
实施例4
一种仿实木地板彩膜,包括表层、彩膜层和底层,所述表层与彩膜层、底层通过热压复合,所述表层,以重量份数计,组成如下:
Figure BDA0004031906100000073
所述底层,以重量份数计,组成如下:
Figure BDA0004031906100000074
实施例5
一种仿实木地板彩膜,包括表层、彩膜层和底层,所述表层与彩膜层、底层通过热压复合,所述表层,以重量份数计,组成如下:
Figure BDA0004031906100000075
Figure BDA0004031906100000081
所述底层,以重量份数计,组成如下:
Figure BDA0004031906100000082
对比例1同实施例1,不同之处在于,对比例1所用增塑剂为邻苯二甲酸二辛酯。
对比例2同实施例1,不同之处在于,对比例2所采用的增塑剂为己二酸二辛酯。
本发明实施例1-5以及对比例1-2的仿实木地板彩膜,分别按照以下步骤制备:
(1)将表层、彩膜层、底层由上到下依次铺好;
(2)将步骤(1)铺好的各层置于层压机上进行热压贴合,热压压力为12kgf/cm2、时间为40min,温度为120℃。
性能测试
对本发明实施例1-5以及对比例1-2所获仿实木地板彩膜进行相关性能测试,测试结果如表1所示。
(1)60℃加热6小时后测试翘曲度。
(2)50℃加热8小时测试膨胀率。
(3)抗冲击强度:参照GB/T 1043-1993中所述的方法。
表1
测试项 60℃,翘曲度 50℃,膨胀率 抗冲击强度(KJ/m2)
实施例1 0.6 0.03 10.2
实施例2 0.5 0.05 10.4
实施例3 0.6 0.03 10.2
实施例4 0.8 0.04 10.5
实施例5 0.3 0.02 10.8
对比例1 1.5 0.08 8.7
对比例2 1.8 0.09 8.5
以上所述,仅是本发明的较佳实施例而已,并非对本发明作任何形式上的限制,虽然本发明已以较佳实施例揭示如上,然而并非用以限定本发明,任何本领域技术人员,在不脱离本发明技术方案范围内,当可利用上述揭示的技术内容做出些许更动或修饰为等同变化的等效实施例,但凡是未脱离本发明技术方案内容,依据本发明的技术实质对以上实施例所作的任何简介修改、等同变化与修饰,均仍属于本发明技术方案的范围内。

Claims (7)

1.一种仿实木地板彩膜,包括表层、彩膜层和底层,所述耐磨层与彩膜层、底层通过热压复合,其特征在于,
所述表层,以重量份数计,包括以下成分:
Figure FDA0004031906090000011
所述底层,以重量份数计,包括以下成分:
Figure FDA0004031906090000012
2.根据权利要求1所述的一种仿实木地板彩膜,其特征在于,所述增塑剂为自制的增塑剂,制备方法包括以下步骤:
(1)将1mol腰果酚、1-1.2mol油酸、对甲苯磺酸、甲基氢醌加入到200mL二甲苯中,加热至150-180℃,强力搅拌2-3h,静置,冷却至室温后,将溶液进行真空浓缩,残留组分得到富集;缓缓加入500mL质量浓度为2wt.%的碳酸氢钠水溶液,洗涤3次,再用去离子水洗涤至中性,分液,取有机相,用无水硫酸钠干燥6h,过滤,滤液60℃真空干燥4h,得到中间产物I;
所述对甲苯磺酸用量为反应物总质量的1%;
所述甲基氢醌用量为反应物总质量的0.5%;
(2)将600g中间产物I、4mol冰醋酸、400mL甲苯加入三口烧瓶中,磁力搅拌,升温至60-65℃开始滴加过2-4mol氧化氢,反应3-6h,冷却至室温,用去离子水洗涤至中性,分液,取有机相,减压蒸馏,60℃真空干燥4h,得到中间产物II;
(3)将650g中间产物II、100g巯基丙酸、四丁基溴化铵置于三口烧瓶中,100-130℃下搅拌1-3h,降至室温,加入400mL二氯甲烷萃取,用500mL质量浓度为2wt%的碳酸氢钠水溶液洗涤3次,再用去离子水洗涤至呈中性,分液,取有机相,用无水硫酸钠干燥6h,过滤,取滤液,减压蒸馏,在60℃真空干燥4h,得到目标产物III;
所述四丁基溴化铵用量为反应物总质量的1.5%。
3.根据权利要求1所述的一种仿实木地板彩膜,其特征在于,所述植物油包括棕榈油、亚麻籽油、蓖麻油、棉籽油、橡胶籽油、菜籽油和大豆油中的至少一种。
4.根据权利要求1所述的一种仿实木地板彩膜,其特征在于,所述热稳定剂包括钙锌复合稳定剂、有机锡类稳定剂中的至少一种。
5.根据权利要求1所述的一种仿实木地板彩膜,其特征在于,所述表层的制备方法包括以下步骤:
S1:按照配方量,将表层原料混合搅拌均匀,得到原料混合物;
S2:将原料混合物先密炼3-5min,再开炼3-5min,密炼温度为165-170℃,开炼温度为120-125℃,各原料充分混合均匀,得到预混料;
S3:压延成型,将预混料投入压延线的料斗中,经过螺杆熔融塑化后挤出压延成片状表层。
6.根据权利要求1所述的一种仿实木地板彩膜,其特征在于,所述底层的制备方法包括以下步骤:
S1:按照配方量,将表层原料混合搅拌均匀,得到原料混合物;
S2:将原料混合物先密炼3-5min,再开炼3-5min,密炼温度为165-170℃,开炼温度为120-125℃,使得各原料充分混合均匀,得到预混料;
S3:压延成型,将预混料投入压延线的料斗中,经过螺杆熔融塑化后挤出压延成片状底层。
7.根据权利要求1-6任一项所述的一种仿实木地板彩膜,其特征在于,制备方法包括以下步骤:
(1)将表层、彩膜层、底层由上到下依次铺好;
(2)将步骤(1)铺好的各层置于层压机上进行热压贴合,热压压力为10-12kgf/cm2、时间为35-40min,温度为120-125℃。
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